topsoil 中文意思是什麼

topsoil 解釋
表土；耕作層土壤。

  1. In most cases, extracting oil involves chopping down the forest that blankets the region, draining the boggy ground, stripping off the topsoil and literally digging up the oily sand below

    在大多數情況下，要從油沙中提煉出石油需要先把覆蓋該地區的森林砍掉，排乾地面的水分，去掉表層土然後當然就是把地下的油沙挖出來。
  2. Thisrough terrain, with its mainly granitic ground that is susceptible to the lossof topsoil nutrients, created acute challenges for reforestation, which only could be overcome with much hard work, dedicated effort and wise planning

    因此，必須以加倍的努力和熱誠，以及明智的規劃，方能排除萬難，重植綠蔭。事實上，不論在香港每一角落，重新植林的任務俱艱巨無比。
  3. Loess is easy borne by the wind and may be carried long distances before it falls to earth and becomes topsoil.

    黃土易被風颳起並帶至遠處方才落下成為表土層。
  4. It would appear that the inputs are insufficient to offset the mobilization and leaching of calcium from the topsoil.

    鈣的轉入量看來不足以補償從表土中活化和淋失的鈣。
  5. Thus the farmer is helping nature rebuild the topsoil that holds the rain, resists the wind and provides food for growing plants.

    因此，農民是協助大自然重建能夠存蓄雨水、抵抗風力和滋養各種植物的表面土壤。
  6. The underground space is a natural formation or artificial exploit space in terrane or topsoil

    地下空間是在巖層或土層中天然形成或經人工開發形成的空間。
  7. The fragile land quickly lost its topsoil and became nothing but sand and dust.

    那單薄的土地很快就失去了表土，成為沙粒和塵埃。
  8. Under flood conditions, great amounts of topsoil are washed to receiving streams.

    在洪水泛濫時，大量表層土壤被沖刷到承受的水流中。
  9. In many countries the loss of productive topsoil has contributed to growing food deficits.

    在許多國家裡，生產性表土的流失已導致日益嚴重的糧食短缺。
  10. If the topsoil is taken away by erosion, plants can no longer grow in the soil left behind.

    如果因水土流失而沖掉了表土，植物不能再在留下的土壤中生長。
  11. When the black topsoil was all washed away, farmers moved westward and started new plantations.

    當表層黑土全部被沖走之後，農民們就向西部轉移，建立新的種植園。
  12. Magnetic response of metals in xuzhou urban topsoil

    徐州城市表層土壤中金屬元素的磁學響應
  13. With increase of artificial forest age, the content of soil organic matter decreased sharply. and soil physical, chemical and biological properties of forest became worsen. from soil physical properties analysis, soil silt, clay, physical clay, aggregate degree and structure coefficient in topsoil increased with increase of artificial forest age and soil sand deceased

    在土壤物理性質方面，隨著人工雲杉林齡的增加，土壤表層粉粒、粘粒、物理性粘粒、團聚度和結構系數降低，砂粒含量增高，土壤飽和持水量、毛管持水量及總孔隙和毛管孔隙在人工雲杉演替過程中表現出「 u 」型變化。
  14. In the absence of successful efforts to stem the loss of topsoil, the social effects of erosion will probably first be seen in africa.

    在控製表土流失的努力缺乏成效的情況下，土壤侵蝕的社會影響將可能首先出現在非洲。
  15. Standard specification for topsoil used for landscaping purposes

    園林設計用耕作層土標準規范
  16. Article 32 the local people ' s governments at and above the county level may demand units which occupy cultivated land to use the topsoil of the land occupied for use in the newly reclaimed land, poor land or other cultivated land for soil amelioration

    第三十二條縣級以上地方人民政府可以要求佔用耕地的單位將所佔用耕地耕作層的土壤用於新開墾耕地、劣質地或者其他耕地的土壤改良。
  17. Actual measure and numerical simulated forecast analysis of dangerous position freeze temperature field of deep topsoil layer

    深厚表土層危險層位凍結溫度場實測與數值模擬預測分析
  18. If the vegetation is damaged on account of the mining or construction, measures must be taken to rehabilitate the topsoil and vegetation, thereby preventing soil erosion

    因采礦和建設使植被受到破壞的，必須採取措施恢復表土層和植被，防止水土流失。
  19. Over - grazing and irrigation methods that wash away topsoil were to blame for some of the damage, experts said. building developments and climate change were doing the rest

    專家指出，因過度放牧或將表土層完全沖刷的灌溉方式都要對土地沙漠化負責.當然房屋開發和氣候變化也逃脫不了干係
  20. This topsoil tends to wash away

    表層土壤要沖掉了。
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